1 (12 points) Consider water flowing through a system from constant-head Tank 1 to Tank 2 (see diagram). The volumetric flow rate is given as 0.01 m3 /s and the system is at steady state. Note that the drawing is NOT to scale. Assume the following: The water levels in the large open-air tanks at the input and output do not change. The density of water is 1000 kg/m 3 and the viscosity is 0.001 kg/ms. The internal diameter of the pipe is 6 cm. Rh (hydraulic radius) is defined as wetted cross-sectional area/wetted perimeter. The piping is hydraulically smooth. All joints are 90, and ev =0.5. Sudden expansion ev =0.45 Sudden contraction e v =1 Gravitational acceleration = 9.8 m/s 2 (A) (1 point) What can be assumed about the velocity at plane 1 relative to the velocity at plane 2? (B) (2 points) Determine the Reynold's number for this system. (C) (2 points) Determine R h for this system. (D) (1 point) Determine f for this system. (E) (6 points) Determine the unknown length x. Problem 1 20 m x m 40 m 40 m 50 m 30